
Kimia unsur
Authored by iwik ida
Chemistry, Science
12th Grade
Used 41+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diantara sifat berikut yang bukan merupakan sifat logam alkali adalah....
Persenyawaannya mudah larut dalam air
Sangat lunak sehingga mudah diiris dengan pisau
Unsur-unsur yang sangat reaktif
Reduktor air yang sangat baik
Terdapat di alam dalam keadaan bebas
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hidroksida berikut yang sifat basanya paling kuat adalah....
Sr(OH)2
Ba(OH)2
Mg(OH)2
Ca(OH)2
Be(OH)2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beberapa kegunaan unsur/senyawa berikut ini
1. Bahan baku pupuk
2. Peralatan masak
3. Bahan baku semen portland
4. Menetralisir asam lambung
5. Pembentuk tulang
Kegunaan unsur kalsium /senyawanya terdapat dalam...
1 dan 2
1 dan 4
2 dan 3
3 dan 4
3 dan 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berdasarkan sifat periodik unsur-unsur halogen, HF diharapkan mempunyai titik didih paling rendah dibandingkan HCl, HBr, HI, tetapi pada kenyataannya HF memiliki titik didih paling tinggi, hal ini disebabkan HF memiliki.....
Ikatan ionik
Ikatan kovalen
Ikatan hidrogen
Ikatan Vander Waals
Kovalen ion
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut ini beberapa sifat unsur:
1. larut dalam air membentuk larutan basa,
2. titik leleh tinggi,
3. membentuk molekul diatomik,
4. oksidator kuat.
Sifat unsur halogen terdapat pada nomor ….
(1) dan (2)
(1) dan (3)
(2) dan (3)
(2) dan (4)
(3) dan (4)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beberapa sifat unsur:
1. Dapat membentuk ion satu positif (1+).
2. Logamnya sangat reaktif.
3. Bereaksi dengan air menghasilkan gas H2.
4. Tidak terdapat dalam keadaan bebas.
Sifat-sifat tersebut dimiliki oleh unsur golongan ….
logam alkali
logam alkali tanah
halogen
gas mulia
logam transisi
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut senyawa yang mengandung unsur golongan IA dan IIA:
1. NaCl
2. KClO3
3. Na2CO3
4. CaOCl2
5. BaCO3
6. CaC3
Senyawa yang digunakan untuk melelehkan salju di jalan dan bahan pembuat korek api adalah ….
(1) dan (2)
(2) dan (3)
(2) dan (4)
(4) dan (5)
(5) dan (6)
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